Author: Widera, R : Search

Access byZhejiang Agr & For University

Zhejiang Agr & For University

28results for"Widera, R" in Contributors

SAVE SEARCH

RSS

Filters

Date

Search Terms

Context Search Term

Select search in areaSearch Term

Published in

Publication Date

All Dates

LastSelect static range

Custom RangeSelect starting monthSelect starting year

Select ending monthSelect ending year

Search name	Searched On	Run search
Author: Widera, R (28)	Aug 03 2025	Run
Author: Davis, R W (23)	Aug 03 2025	Run
Author: Gonzalez, R (76)	Aug 03 2025	Run
Author: Randall, E W (33)	Aug 03 2025	Run
Author: Medghalchi, Mino (1)	Aug 03 2025	Run

You do not have any saved searches

Export Citation(s)Download PDF(s)

Mittheilungen
Full Access

full

Elektrolyse von Nitroso-α-Pipecolin und Nitroso-Tetrahydrochinolin

R. Widera,

Berichte der deutschen chemischen Gesellschaft Volume 31, Issue 2
First published: Mai–August 1898
Preparative Organic Chemistry
Full Access

full

ChemInform Abstract: MOLECULE LINKAGE BY SULFUR CHLORIDES. VI. THE REACTION OF DICHLOROSULFANE WITH THIOCARBAMIC ACID ESTERS

M. MUEHLSTAEDT, R. WIDERA,

Chemischer Informationsdienst Volume 9, Issue 19
First published: May 9, 1978

Abstract
Physical Organic Chemistry
Full Access

full

ChemInform Abstract: DEUTERIUM NMR STUDY OF HINDERED ROTATION AT THE NCX BOND. IX. N-SUBSTITUTED O-PHENYL AND S-ETHYL THIOCARBAMATES

E. KLEINPETER, R. WIDERA, M. MUEHLSTAEDT,

Chemischer Informationsdienst Volume 9, Issue 36
First published: September 5, 1978
Heterocyclic Compounds
Full Access

full

ChemInform Abstract: CYCLIZATION REACTIONS OF β,Γ-UNSATURATED DERIVATIVES OF CARBONIC ACID. II. REACTIONS OF β,Γ-UNSATURATED CARBAMIC ACID DERIVATIVES WITH ELECTROPHILIC REAGENTS - SYNTHESIS OF N-SUBSTITUTED OXAZOLIDIN-3-ONES

M. + MUEHLSTAEDT, R. WIDERA,

Chemischer Informationsdienst Volume 11, Issue 22
First published: June 3, 1980

Abstract
Physical Organic Chemistry
Full Access

full

ChemInform Abstract: DYNAMIC NMR STUDY OF HINDERED ROTATION AT THE N-C(X) BONDING FRAGMENT. XII. EFFECT OF SUBSTITUENTS ON THE CARBON-NITROGEN ROTATION BARRIER IN VARIOUSLY N-SUBSTITUTED O-ETHYL CARBAMATES

E. KLEINPETER, M. KRETSCHMER, R. BORSDORF, R. WIDERA, M. + MUEHLSTAEDT,

Chemischer Informationsdienst Volume 12, Issue 5
First published: February 3, 1981
Heterocyclic Compounds
Full Access

full

ChemInform Abstract: CYCLIZATION REACTIONS OF β,Γ-UNSATURATED DERIVATIVES OF CARBONIC ACID. IV. SYNTHESIS OF N-SUBSTITUTED THIAZOLIDIN-2-ONES AND 2-ALKOXY-2-THIAZOLINES FROM β,Γ-UNSATURATED THIOCARBAMIC ACID ESTERS

M. + MUEHLSTAEDT, R. WIDERA,

Chemischer Informationsdienst Volume 12, Issue 39
First published: September 29, 1981

Abstract
Isocyclic Compounds
Full Access

full

ChemInform Abstract: N-(AMINOTHIOCARBONYL)BENZIMIDE CHLORIDES

L. BEYER, R. WIDERA,

Chemischer Informationsdienst Volume 13, Issue 42
First published: October 19, 1982

Abstract
Heterocyclic Compounds
Full Access

full

ChemInform Abstract: CYCLIZATION REACTIONS OF β,Γ-UNSATURATED DERIVATIVES OF CARBONIC ACID. V. REACTIONS OF β,Γ-UNSATURATED CARBAMIC ACID ESTERS WITH SULFENYL CHLORIDES - SYNTHESIS OF 3,5,5-TRISUBSTITUTED OXAZOLIDIN-2-ONES

M. + MUEHLSTAEDT, R. WIDERA, B. OLK,

Chemischer Informationsdienst Volume 13, Issue 46
First published: November 16, 1982

Abstract
Heterocyclic Compounds
Full Access

full

ChemInform Abstract: CYCLIZATION REACTIONS OF β,Γ-UNSATURATED DERIVATIVES OF CARBONIC ACID. VII. SYNTHESIS OF N-ACYLATED THIAZOLIDIN-2-ONES AND OXAZOLIDIN-2-ONES

R. WIDERA, M. + MUEHLSTAEDT,

Chemischer Informationsdienst Volume 14, Issue 14
First published: April 5, 1983

Abstract
Heterocyclic Compounds
Full Access

full

ChemInform Abstract: REACTIONS OF HETERO-1,5-DIENES WITH SULFUR DICHLORIDE - SYNTHESIS OF 2,3-DIHYDRO-1,4-BENZOTHIAZINES

M. + MUEHLSTAEDT, K. HOLLMANN, R. WIDERA,

Chemischer Informationsdienst Volume 14, Issue 49
First published: December 6, 1983

Abstract
Preparative Organic Chemistry
Full Access

full

ChemInform Abstract: CYCLIZATION REACTIONS OF β,Γ-UNSATURATED CARBOXYLIC ACID DERIVATIVES. VIII. CYCLOFUNCTIONALIZATION OF N-CYCLOHEXENYL- OR N-CINNAMYLURETHANES TO OXAZOLIDIN-2-ONES OR 1,3-OXAZIN-2-ONE DERIVATIVES

M. + MUEHLSTAEDT, B. OLK, R. WIDERA,

Chemischer Informationsdienst Volume 15, Issue 3
First published: January 17, 1984

Abstract
Preparative Organic Chemistry
Full Access

full

ChemInform Abstract: REACTIONS OF NICKEL(II)-COORDINATED N-ACYLTHIOUREAS WITH ORGANIC ACID CHLORIDES AS A SIMPLE ROUTE TO NEW THIOUREA DERIVATIVES

L. BEYER, J. HARTUNG, R. WIDERA,

Chemischer Informationsdienst Volume 15, Issue 18
First published: May 1, 1984

Abstract
Preparative Organic Chemistry
Full Access

full

ChemInform Abstract: Cyclization Reactions of β,γ-Unsaturated Derivatives of Carbonic Acid. Part 9. Regiochemistry of Electrophilic Cyclofunctionalization of β,γ-Unsaturated Carbamic Acid Esters with Bromine - Synthesis of Oxazolidine-2-ones and Tetrahydro-2H-1,3-oxazine-2-ones.

M. + MUEHLSTAEDT, B. OLK, R. WIDERA,

Chemischer Informationsdienst Volume 17, Issue 45
First published: November 11, 1986

Abstract
Heterocyclic Compounds
Full Access

full

ChemInform Abstract: Cyclization Reactions of βγ-Unsaturated Derivatives of Carbonic Acid. Part 11. Investigation of the Stereochemistry of the Cyclofunctionalization of βγ-Unsaturated Carbamic Acid Esters.

M. + MUEHLSTAEDT, R. MEUSINGER, B. OLK, L. WEBER, R. WIDERA,

ChemInform Volume 18, Issue 9
First published: March 3, 1987

Abstract
Preparative Organic Chemistry
Full Access

full

ChemInform Abstract: Reaction of 2-Allyl Anilines with Sulfenyl Chlorides

M. + MUEHLSTAEDT, K. HOLLMANN, R. WIDERA,

ChemInform Volume 20, Issue 15
First published: April 11, 1989
Article
Full Access

full

d-NMR-Untersuchung der behinderten Rotation am

-Bindungsinkrement. III^†. N-substituierte Carbamid- und Thiocarbamidsäure-O-äthylester

E. Kleinpeter, R. Widera, M. Mühlstädt,

Journal für Praktische Chemie Volume 319, Issue 1
First published: 1977

Abstract
Article
Full Access

full

Zur Molekülverknüpfung mit Schwefelchloriden. VI ^†^‡. Die Reaktion von Dichlorsulfan mit Thiocarbamidsäureestern

M. Mühlstädt, R. Widera,

Journal für Praktische Chemie Volume 320, Issue 1
First published: 1978

Abstract
Article
Full Access

full

d-NMR-Untersuchung der behinderten Rotation am

-Bindungsinkrement. X^†. N-substituierte Thiocarbamidsäure-O-phenyl- und S-äthylester

E. Kleinpeter, R. Widera, M. Mühlstädt,

Journal für Praktische Chemie Volume 320, Issue 2
First published: 1978

Abstract
Article
Full Access

full

Cyclisierungsreaktionen β, γ-ungesättigter Kohlensäurederivate. II ^†. Reaktionen β, γ-ungesättigter Carbamidsäurederivate mit elektrophilen Reagenzien - Synthese von N-substituierten Oxazolidin-2-onen

M. Mühlstädt, R. Widera,

Journal für Praktische Chemie Volume 322, Issue 1
First published: 1980

Abstract
Article
Full Access

full

Cyclisierungsreaktionen β,γ-ungesättigter Kohlensäurederivate. III. Zum massenspektrometrischen Fragmentierungsverhalten ausgewählter Oxazolidin-2-one, Thiazolidin-2-one und Thiazolidin-2-thione

Cyclization Reactions of β,γ-Unsaturated Derivatives of Carbonic Acid. III. Mass Spectrometric Fragmentation of Some Oxazolidine-2-ones, Thiazolidine-2-ones, and Thiazolidine-2-thiones

H. Remane, R. Widera, M. Mühlstädt,

Journal für Praktische Chemie Volume 322, Issue 2
First published: 1980

Applied Filters

Filters

Publication Type

Subjects

Published in

Author

Search Results

refine search

Refine Search

Search History

Saved Searches

Download PDFs

full Elektrolyse von Nitroso-α-Pipecolin und Nitroso-Tetrahydrochinolin

full ChemInform Abstract: MOLECULE LINKAGE BY SULFUR CHLORIDES. VI. THE REACTION OF DICHLOROSULFANE WITH THIOCARBAMIC ACID ESTERS

full ChemInform Abstract: DEUTERIUM NMR STUDY OF HINDERED ROTATION AT THE NCX BOND. IX. N-SUBSTITUTED O-PHENYL AND S-ETHYL THIOCARBAMATES

full ChemInform Abstract: CYCLIZATION REACTIONS OF β,Γ-UNSATURATED DERIVATIVES OF CARBONIC ACID. II. REACTIONS OF β,Γ-UNSATURATED CARBAMIC ACID DERIVATIVES WITH ELECTROPHILIC REAGENTS - SYNTHESIS OF N-SUBSTITUTED OXAZOLIDIN-3-ONES

full ChemInform Abstract: DYNAMIC NMR STUDY OF HINDERED ROTATION AT THE N-C(X) BONDING FRAGMENT. XII. EFFECT OF SUBSTITUENTS ON THE CARBON-NITROGEN ROTATION BARRIER IN VARIOUSLY N-SUBSTITUTED O-ETHYL CARBAMATES

full ChemInform Abstract: CYCLIZATION REACTIONS OF β,Γ-UNSATURATED DERIVATIVES OF CARBONIC ACID. IV. SYNTHESIS OF N-SUBSTITUTED THIAZOLIDIN-2-ONES AND 2-ALKOXY-2-THIAZOLINES FROM β,Γ-UNSATURATED THIOCARBAMIC ACID ESTERS

full ChemInform Abstract: N-(AMINOTHIOCARBONYL)BENZIMIDE CHLORIDES

full ChemInform Abstract: CYCLIZATION REACTIONS OF β,Γ-UNSATURATED DERIVATIVES OF CARBONIC ACID. V. REACTIONS OF β,Γ-UNSATURATED CARBAMIC ACID ESTERS WITH SULFENYL CHLORIDES - SYNTHESIS OF 3,5,5-TRISUBSTITUTED OXAZOLIDIN-2-ONES

full ChemInform Abstract: CYCLIZATION REACTIONS OF β,Γ-UNSATURATED DERIVATIVES OF CARBONIC ACID. VII. SYNTHESIS OF N-ACYLATED THIAZOLIDIN-2-ONES AND OXAZOLIDIN-2-ONES

full ChemInform Abstract: REACTIONS OF HETERO-1,5-DIENES WITH SULFUR DICHLORIDE - SYNTHESIS OF 2,3-DIHYDRO-1,4-BENZOTHIAZINES

full ChemInform Abstract: CYCLIZATION REACTIONS OF β,Γ-UNSATURATED CARBOXYLIC ACID DERIVATIVES. VIII. CYCLOFUNCTIONALIZATION OF N-CYCLOHEXENYL- OR N-CINNAMYLURETHANES TO OXAZOLIDIN-2-ONES OR 1,3-OXAZIN-2-ONE DERIVATIVES

full ChemInform Abstract: REACTIONS OF NICKEL(II)-COORDINATED N-ACYLTHIOUREAS WITH ORGANIC ACID CHLORIDES AS A SIMPLE ROUTE TO NEW THIOUREA DERIVATIVES

full ChemInform Abstract: Cyclization Reactions of β,γ-Unsaturated Derivatives of Carbonic Acid. Part 9. Regiochemistry of Electrophilic Cyclofunctionalization of β,γ-Unsaturated Carbamic Acid Esters with Bromine - Synthesis of Oxazolidine-2-ones and Tetrahydro-2H-1,3-oxazine-2-ones.

full ChemInform Abstract: Cyclization Reactions of βγ-Unsaturated Derivatives of Carbonic Acid. Part 11. Investigation of the Stereochemistry of the Cyclofunctionalization of βγ-Unsaturated Carbamic Acid Esters.

full ChemInform Abstract: Reaction of 2-Allyl Anilines with Sulfenyl Chlorides

full d-NMR-Untersuchung der behinderten Rotation am -Bindungsinkrement. III†. N-substituierte Carbamid- und Thiocarbamidsäure-O-äthylester

full Zur Molekülverknüpfung mit Schwefelchloriden. VI†‡. Die Reaktion von Dichlorsulfan mit Thiocarbamidsäureestern

full d-NMR-Untersuchung der behinderten Rotation am -Bindungsinkrement. X†. N-substituierte Thiocarbamidsäure-O-phenyl- und S-äthylester

full Cyclisierungsreaktionen β, γ-ungesättigter Kohlensäurederivate. II†. Reaktionen β, γ-ungesättigter Carbamidsäurederivate mit elektrophilen Reagenzien - Synthese von N-substituierten Oxazolidin-2-onen

full Cyclisierungsreaktionen β,γ-ungesättigter Kohlensäurederivate. III. Zum massenspektrometrischen Fragmentierungsverhalten ausgewählter Oxazolidin-2-one, Thiazolidin-2-one und Thiazolidin-2-thione

full

Elektrolyse von Nitroso-α-Pipecolin und Nitroso-Tetrahydrochinolin

full

ChemInform Abstract: MOLECULE LINKAGE BY SULFUR CHLORIDES. VI. THE REACTION OF DICHLOROSULFANE WITH THIOCARBAMIC ACID ESTERS

full

ChemInform Abstract: DEUTERIUM NMR STUDY OF HINDERED ROTATION AT THE NCX BOND. IX. N-SUBSTITUTED O-PHENYL AND S-ETHYL THIOCARBAMATES

full

ChemInform Abstract: CYCLIZATION REACTIONS OF β,Γ-UNSATURATED DERIVATIVES OF CARBONIC ACID. II. REACTIONS OF β,Γ-UNSATURATED CARBAMIC ACID DERIVATIVES WITH ELECTROPHILIC REAGENTS - SYNTHESIS OF N-SUBSTITUTED OXAZOLIDIN-3-ONES

full

ChemInform Abstract: DYNAMIC NMR STUDY OF HINDERED ROTATION AT THE N-C(X) BONDING FRAGMENT. XII. EFFECT OF SUBSTITUENTS ON THE CARBON-NITROGEN ROTATION BARRIER IN VARIOUSLY N-SUBSTITUTED O-ETHYL CARBAMATES

full

ChemInform Abstract: CYCLIZATION REACTIONS OF β,Γ-UNSATURATED DERIVATIVES OF CARBONIC ACID. IV. SYNTHESIS OF N-SUBSTITUTED THIAZOLIDIN-2-ONES AND 2-ALKOXY-2-THIAZOLINES FROM β,Γ-UNSATURATED THIOCARBAMIC ACID ESTERS

full

ChemInform Abstract: N-(AMINOTHIOCARBONYL)BENZIMIDE CHLORIDES

full

ChemInform Abstract: CYCLIZATION REACTIONS OF β,Γ-UNSATURATED DERIVATIVES OF CARBONIC ACID. V. REACTIONS OF β,Γ-UNSATURATED CARBAMIC ACID ESTERS WITH SULFENYL CHLORIDES - SYNTHESIS OF 3,5,5-TRISUBSTITUTED OXAZOLIDIN-2-ONES

full

ChemInform Abstract: CYCLIZATION REACTIONS OF β,Γ-UNSATURATED DERIVATIVES OF CARBONIC ACID. VII. SYNTHESIS OF N-ACYLATED THIAZOLIDIN-2-ONES AND OXAZOLIDIN-2-ONES

full

ChemInform Abstract: REACTIONS OF HETERO-1,5-DIENES WITH SULFUR DICHLORIDE - SYNTHESIS OF 2,3-DIHYDRO-1,4-BENZOTHIAZINES

full

ChemInform Abstract: CYCLIZATION REACTIONS OF β,Γ-UNSATURATED CARBOXYLIC ACID DERIVATIVES. VIII. CYCLOFUNCTIONALIZATION OF N-CYCLOHEXENYL- OR N-CINNAMYLURETHANES TO OXAZOLIDIN-2-ONES OR 1,3-OXAZIN-2-ONE DERIVATIVES

full

ChemInform Abstract: REACTIONS OF NICKEL(II)-COORDINATED N-ACYLTHIOUREAS WITH ORGANIC ACID CHLORIDES AS A SIMPLE ROUTE TO NEW THIOUREA DERIVATIVES

full

ChemInform Abstract: Cyclization Reactions of β,γ-Unsaturated Derivatives of Carbonic Acid. Part 9. Regiochemistry of Electrophilic Cyclofunctionalization of β,γ-Unsaturated Carbamic Acid Esters with Bromine - Synthesis of Oxazolidine-2-ones and Tetrahydro-2H-1,3-oxazine-2-ones.

full

ChemInform Abstract: Cyclization Reactions of βγ-Unsaturated Derivatives of Carbonic Acid. Part 11. Investigation of the Stereochemistry of the Cyclofunctionalization of βγ-Unsaturated Carbamic Acid Esters.

full

ChemInform Abstract: Reaction of 2-Allyl Anilines with Sulfenyl Chlorides

full

d-NMR-Untersuchung der behinderten Rotation am

-Bindungsinkrement. III^†. N-substituierte Carbamid- und Thiocarbamidsäure-O-äthylester

full

Zur Molekülverknüpfung mit Schwefelchloriden. VI ^†^‡. Die Reaktion von Dichlorsulfan mit Thiocarbamidsäureestern

full

d-NMR-Untersuchung der behinderten Rotation am

-Bindungsinkrement. X^†. N-substituierte Thiocarbamidsäure-O-phenyl- und S-äthylester

full

Cyclisierungsreaktionen β, γ-ungesättigter Kohlensäurederivate. II ^†. Reaktionen β, γ-ungesättigter Carbamidsäurederivate mit elektrophilen Reagenzien - Synthese von N-substituierten Oxazolidin-2-onen

full

Cyclisierungsreaktionen β,γ-ungesättigter Kohlensäurederivate. III. Zum massenspektrometrischen Fragmentierungsverhalten ausgewählter Oxazolidin-2-one, Thiazolidin-2-one und Thiazolidin-2-thione